CN110266372A

CN110266372A - Send and receive the method and device thereof of detection reference signal

Info

Publication number: CN110266372A
Application number: CN201910507114.8A
Authority: CN
Inventors: 金泳范; 赵俊暎; 池衡柱; 崔承勋
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2013-10-11
Filing date: 2014-10-10
Publication date: 2019-09-20
Anticipated expiration: 2034-10-10
Also published as: US20160254892A1; JP6490677B2; JP6740404B2; US11750347B2; ES2841741T3; JP2019126069A; PL3410614T3; US20200304265A1; EP3410614B1; EP3057245B1; US10721043B2; CN105814812A; EP3410614A1; PL3057245T3; KR102222880B1; JP2016534595A; LT3410614T; CN105814812B; EP3057245A4; KR102292856B1

Abstract

The present invention relates to a kind of methods that terminal in mobile communication system sends detection reference signal (SRS) or Physical Uplink Shared Channel (PUSCH).According to an embodiment of the present invention, a kind of communication means of the terminal in the combined communication system for supporting the configuration carrier wave using FDD scheme and the configuration carrier wave using TDD scheme, comprising steps of receiving SRS from base station sends setting information；Uplink data scheduling information is received from base station；Determine whether to occur transmission while SRS and uplink data；And when being sent while generation SRS and uplink data, the transmission of the uplink data or the SRS is set, power is sent so that the sum of the corresponding transmission power of the first code element and the second code element in the first code element and second code element and TDD cell when SRS occurring and uplink data while sends in FDD cell is no more than the maximum of the terminal, wherein, the timing of the first code element of the FDD cell is corresponding with the timing of the first code element of the TDD cell, and the timing of the second code element of the FDD cell is corresponding with the timing of the second code element of the TDD cell.According to one embodiment of present invention, the SRS sending method for effectively sending uplink data of terminal in a wireless communication system is defined.

Description

Send and receive the method and device thereof of detection reference signal

The application be the applying date be on October 10th, 2014, application No. is 201480067882.1, it is entitled " in bee The divisional application of the application for a patent for invention of the method and apparatus of transmission SRS in cellular mobile communication system ".

Technical field

The present invention relates to cellular radio Communication system, more particularly, to being configured to support using frequency division duplex (FDD) in the communication system of the carrier wave polymerization of the component carrier of scheme and the component carrier of use time division duplex (TDD) scheme eventually Hold the method for sending detection reference signal (SRS) to base station.

Background technique

The wireless communication system for providing voice-based service has been evolved to and can be provided based on high quality and at high speed The system of broadband wireless communication of packet data service, such as long term evolution defined in third generation partner program (3GPP) (LTE), high-speed packet access (HSPA)；The Ultra-Mobile Broadband (UMB) defined in third generation partner program 2 (3GPP2), High Rate Packet Data (HRPD)；Communication standard IEEE 802.16e etc..

The LTE system of a typical example as system of broadband wireless communication uses orthogonal frequency division multiplexing in the downlink Single-carrier frequency division multiple access (SC-FDMA) is used in the uplink with (OFDM).Multiple access is executed according to user to carrying data Distribution and management with the temporal frequency resource of control information be not to overlap one another, that is, to realize between them just Thus the property handed over distinguishes data or control information between each user.

Fig. 1 is to show LTE system to send data by uplink on time-frequency domain or control the wireless money of information The basic structure of source region.

In LTE system, uplink (UL) refer to UE by its to evolution node B (eNB) (base station) send data or The Radio Link of signal is controlled, and downlink (DL) refers to that eNB sends data to UE by it or controls the radio chains of signal Road.

As shown in Figure 1, trunnion axis and vertical axis respectively represent time domain and frequency domain.Smallest transmission unit in the time domain is SC-FDMA symbol.The N indicated by reference number 102_symbA SC-FDMA symbol (number that N represents symbol) forms a time slot 106.Two time slots 106 form a subframe 105.10 subframes 105 form a radio frames 107.Time slot is with 0.5 millisecond Length.Subframe has 1.0 milliseconds of length.Radio frames have 10 milliseconds of length.Smallest transmission unit on frequency domain is son Carrier wave.

Basic resources unit on temporal frequency domain is resource element (RE) 112, and passes through SC-FDMA symbol index It is indicated with sub-carrier indices.Resource block (RB) 108 (or Physical Resource Block (PRB)) is defined as in the time domain continuous N_symbA SC-FDMA symbol 102 and the continuous N on frequency domain^RBSc subcarrier 110.Therefore, a RB 108 includes N_symb ×N^RBSc RE, are represented as N_symb×N^RBSc RE 112.In general, the minimum unit of data is RB 108, and system Transmission bandwidth forms N in total_RBA RB, is expressed as N_RBA RB 108.Whole system transmission bandwidth is N in total_RB×N^RBSc son carries Wave is expressed as N_RB×N^RBSc subcarrier 104.In general, in LTE system, N_symb=7 and N^RBSc=12.

LTE system uses mixed automatic repeat request (HARQ) scheme, is used for via physical layer retransmission in initial transmission Decode the data of failure.HARQ scheme allows receiver to send when not being correctly decoded the data from transmitter to transmitter It indicates the information (NACK) of decoding failure, is retransmitted so that transmitter is executable from the data of physical layer.Receiver will be from transmission The re-transmission data of device are combined with the available data of decoding failure, thus improve data reception capabilities.When having correctly decoded data When, receiver sends the information (ACK) of instruction successfully decoded so that transmitter can execute the transmission of new data to transmitter.

In a broadband wireless communication system, an important factor for wireless data service of high transfer rate is provided first is that support The ability of scalable bandwidth.For example, LTE system can support various bandwidth, such as 20/15/10/5/3/1.4MHz etc..Cause This, service provider can select specific one in the various bandwidth and provide service by the bandwidth.There are various The user equipment (UE) that can be supported from minimum 1.4MHz to the bandwidth of highest 20MHz of type.

Fig. 2 is the figure for showing the structure for the lte-a system for supporting carrier wave polymerization.

As shown in Fig. 2, eNB (base station) 202 supports the polymerization of two component carriers CC#1 and CC#2.CC#1 has frequency F1, and CC#2 has the frequency f2 different from f1.CC#1 and CC#2 is included in same base station 202.It is right respectively that eNB 202 is provided It should be in the coverage area 104 and 106 of component carrier CC#1 and CC#2.The lte-a system basis respectively that carrier wave can be supported to polymerize Component carrier executes the transmission of data and the transmission of control information relevant to the transmission of data.Configuration shown in figure 2 Can by polymerize with downlink carrier it is identical in a manner of be applied to uplink carrier polymerize.

Component carrier is divided into main plot (Pcell) and supplementary cell (Scell) and manages it by carrier aggregation system ?.Pcell is directed to UE and provides the cell of basic radio resource and be initially accessed, switch etc. it as allowing UE to execute The normal cell of the operation of class.Pcell includes downlink basic frequency (or principal component carrier wave (PCC)) and uplink dominant frequency Rate.Scell, which refers to, provides the cell of addition radio resources to UE together with Pcell.Scell includes downlink quenching frequency (or auxiliary component carrier wave (SCC)) and uplink quenching frequency.In the disclosure, unless otherwise stated, term is " small Area " and " component carrier " will be interchangeably used each other.

Frequency division duplex (FDD) scheme uses different frequency to downlink and uplink.In contrast, time division duplex (TDD) scheme executes uplink/downlink letter to downlink and uplink using identical frequency but in different time Number send and receive.LTE TDD scheme sends uplink or down link signal in different time according to subframe.Therefore, In the time domain, according to the business load of uplink and downlink, LTE TDD can: subframe is averagely allocated to uplink Road/downlink and manage them；Or the more subframes of distribution to uplink or downlink and manage them.

[table 1]

Table 1 shows the configuration of the TDD uplink-downlink defined in LTE.In table 1, ' D ' representative is configured For the subframe of downlink transmission, " U " represents the subframe for being configured for uplink transmission, and ' S ' indicates to include downlink The special subframe of link pilot time slot (DwPTS), protective time slot (GP) and uplink pilot time slot (UpPTS).

Fig. 3 is the figure for showing the structure of special subframe of LTE TDD system.

With reference to Fig. 3, DwPTS 301 is used to as usual subframe send control information via downlink.When according to spy When the configuration status DwPTS 301 of different subframe has sufficient length, it can be used to communicating downlink data.GP 302 is to use In the period for receiving conversion of the transmission signal from downlink to uplink, and its length come according to network settings etc. it is true It is fixed.UpPTS 303 includes one or two SC-FDMA symbol, and is used for transmission the detection reference signal (SRS) of UE, and eNB is needed Will the signal carry out estimating uplink channel status, or be used for transmission the random access lead code of UE to execute random access.

The length of special subframe is 1 millisecond as common subframe.According to the setting of eNB, DwPTS 301 include 3 to 12 OFDM symbols, and UpPTS 303 includes 1 or 2 SC-FDMA symbol.GP 302, which has, passes through the overall length from special subframe Spend the time interval that (1 millisecond) subtracts the length of DwPTS 301 and UpPTS 303 and obtains.

As described in Table 1, it is configured according to TDD uplink-downlink, special subframe can be arranged to subframe #1 or son Frame #6.

For example, configuring #6 for TDD uplink-downlink, subframe #0, #5 and #9 can be with communicating downlink data With control information, and subframe #2, #3, #4, #7 and #8 can with transfer uplink data and control information.Corresponding to special subframe Subframe #1 and #6 information and further down link data can be controlled according to condition communicating downlink.Detection is with reference to letter Number (SRS) or RACH can be transmitted via uplink.

ENB is according to the SRS estimating uplink channel status sent from UE.In general, SRS can be located at the last one of subframe In SC-FDMA symbol.In the LTE system using TDD scheme, the part UpPTS of special subframe can be in most two SC-FDMA SRS is transmitted in symbol.ENB can determine the subframe that can be used for sending SRS and can be used for sending the SC- of SRS in UpPTS FDMA symbol, and the setting is notified to UE by signaling.

It is configured as that traditional lte-a system of carrier wave polymerization is supported to have to each component carrier using identical duplex side The limitation of case.That is, it polymerize the component carrier for using TDD scheme using the component carrier of FDD scheme or each other each other.

The carrier wave of duplexing schemes different from each other is used to polymerize in order to execute according to component carrier, the present invention provides UE The method for sending SRS by special subframe.

Summary of the invention

Technical problem

The present invention has been made to solve the above problems and disadvantage, and advantage at least disclosed below is provided.Therefore, this hair The bright one kind that provides is being configured as supporting the component carrier using frequency division duplex (FDD) scheme and is using time division duplex (TDD) The method that UE sends detection reference signal (SRS) to eNB in the communication system of the carrier wave polymerization of the component carrier of scheme.

This part (technical problem) is only to be intended to provide several aspects of the invention.It should be understood that feature of the invention and Advantage is not limited to those described above, and will become from being described below in other characteristics and advantages as not described above It obtains more obvious.

Technical solution

According to an aspect of the present invention, the present invention provides one kind and is being configured as supporting using frequency division duplex (FDD) scheme The communication party of component carrier and the terminal in the communication system for using the carrier wave of the component carrier of time division duplex (TDD) scheme to polymerize Method.This method comprises: receiving the setting information sent about SRS from base station；The tune about uplink data is received from base station Spend information；Determine whether to occur transmission while SRS and uplink data；And when SRS and uplink data occurs When sending simultaneously, the transmission of uplink data or SRS are set so as to the first code element of FDD cell and the transmission function of second code element The sum of transmission power of the first code element and second code element of rate and TDD cell is no more than the maximum of terminal and sends power.FDD cell First code element timing it is corresponding with the timing of the first code element of TDD cell.The timing of the second code element of FDD cell and TDD are small The timing of the second code element in area is corresponding.

It is being configured as supporting using the side frequency division duplex (FDD) it is another aspect of this invention to provide that the present invention provides one kind The base station in communication system that the carrier wave of the component carrier of the component carrier and use time division duplex (TDD) scheme of case polymerize leads to Letter method.This method comprises: sending the setting information sent about SRS to terminal；And it sends to terminal about uplink The scheduling information of data.The setting information sent about SRS and the scheduling information about uplink data include: to be used for The transmission of setting SRS or uplink data when occurring is sent while SRS and uplink data so as to the of FDD cell The sum of transmission power of the first code element for sending power and TDD cell and second code element of one symbol and second code element is no more than eventually The maximum information for sending power at end.The timing of first code element of timing and TDD cell of the first code element of FDD cell is corresponding. The timing of second code element of timing and TDD cell of the second code element of FDD cell is corresponding.

It is configured as supporting to use frequency division duplex (FDD) scheme it is another aspect of this invention to provide that the present invention provides one kind Component carrier and using time division duplex (TDD) scheme component carrier carrier wave polymerization communication system terminal.The terminal Include: communication unit, is used for and base station communication；And controller, it is used for: receiving the setting information sent about SRS from base station；From Base station receives the scheduling information about uplink data；Determine whether to occur transmission while SRS and uplink data；With And sent while SRS and uplink data when occurring, uplink data or SRS is arranged is transmitted such that FDD is small The sum of transmission power of the first code element in area and the first code element for sending power and TDD cell of second code element and second code element is no Maximum more than terminal sends power.The timing of first code element of timing and TDD cell of the first code element of FDD cell is corresponding. The timing of second code element of timing and TDD cell of the second code element of FDD cell is corresponding.

According to another aspect of the present invention, the present invention provides one kind and is configured as supporting to use frequency division duplex (FDD) scheme Component carrier and using time division duplex (TDD) scheme component carrier carrier wave polymerization communication system base station.The base station It include: communication unit, for being communicated with terminal；And controller, for terminal send the setting information sent about SRS with Scheduling information about uplink data.It is described about SRS send setting information and about the scheduling of uplink data Information include: for while SRS and uplink data send occur when setting SRS or uplink data transmission with Just the transmission function of the first code element for sending power and TDD cell and second code element of the first code element of FDD cell and second code element The sum of rate is no more than the maximum information for sending power of terminal.First yard of the timing of the first code element of FDD cell and TDD cell The timing of member is corresponding.The timing of second code element of timing and TDD cell of the second code element of FDD cell is corresponding.

Advantageous effects

Invention defines the SRS sending method of UE in a wireless communication system and aloow UE efficiently Send uplink data.

It should be appreciated that beneficial effects of the present invention those of are not limited to describe in front, from the following description, do not exist Other effects described above will be apparent from.

Detailed description of the invention

Fig. 1 is the figure for showing the basic structure of uplink temporal frequency domain of LTE system.

Fig. 4 be show it is exemplary when the subframe of the special subframe of TDD cell and FDD cell is overlapped in time Figure.

Fig. 5 is the figure for showing method 1 according to a first embodiment of the present invention.

Fig. 6 is the figure for showing method 2 according to a first embodiment of the present invention.

Fig. 7 is the figure for showing method 3 according to a first embodiment of the present invention.

Fig. 8 is the figure for showing method 4 according to a first embodiment of the present invention.

Fig. 9 is the figure for showing method 1 according to a second embodiment of the present invention.

Figure 10 is the figure for showing method 2 according to a second embodiment of the present invention.

Figure 11 is the figure for showing method 3 according to a second embodiment of the present invention.

Figure 12 is the figure for showing method 1 according to a third embodiment of the present invention.

Figure 13 is the figure for showing method 2 according to a third embodiment of the present invention.

Figure 14 is the figure for showing method 3 according to a third embodiment of the present invention.

Figure 15 is the figure for showing method 4 according to a third embodiment of the present invention.

Figure 16 is the figure for showing method 1 according to a fourth embodiment of the present invention.

Figure 17 is the figure for showing method 2 according to a fourth embodiment of the present invention.

Figure 18 is the figure for showing method 3 according to a fourth embodiment of the present invention.

Figure 19 is the figure for showing method according to a fifth embodiment of the present invention.

Figure 20 is the flow chart for describing the operation of eNB according to an embodiment of the invention.

Figure 21 is the flow chart for describing the operation of UE according to an embodiment of the invention.

Figure 22 is the block diagram for showing the sending device of UE according to an embodiment of the invention.

Figure 23 is the block diagram for showing the receiving device of eNB according to an embodiment of the invention.

Figure 24 is the figure for showing method according to a sixth embodiment of the present invention.

Figure 25 is the flow chart for describing the operation of eNB according to a sixth embodiment of the present invention.

Figure 26 is the flow chart for describing the operation of UE according to a sixth embodiment of the present invention.

Figure 27 is the block diagram for showing the sending device of UE according to another embodiment of the present invention.

Figure 28 is the block diagram for showing the receiving device of eNB according to another embodiment of the present invention.

Specific embodiment

The embodiment of the present invention is described in detail with reference to the drawings.It may omit to the detailed of the known function and structure for including herein Thin description is to avoid fuzzy subject of the present invention.It will be further understood that, such as those terms defined in common dictionary should be by It is construed to have and their consistent meanings of meaning in the context of the relevant technologies and should not be by with idealization or mistake It is explained in formal mode, unless clear so expression herein.

Term " base station ", which refers to, to be configured as distributing the entity of resource and to UE at least one of following connotation It uses: eNode B, eNB, node B, base station (BS), Wireless Access Unit, base station controller, the node on network.

Term " terminal " is used with following connotation: user equipment (UE), mobile station (MS), cellular phone, smart phone, Computer or the multimedia system for being able to carry out communication function.

Based on E-UTRA (or being LTE) or advanced E-UTRA (or being LTE-A) System describe the embodiment of the present invention； It will be appreciated, however, that the present invention is readily applicable to similar to the various types of of technical background and channel form of the invention The communication system of type.

It should be understood by those skilled in the art that: the embodiment of the present invention can be modified without departing from the scope of the present invention and Spirit, and the modification can also be applied to other kinds of communication system.

In the disclosure, it defines UE and is carried with executing according to component via special subframe transmission detection reference signal (SRS) The method that wave is polymerize using the carrier wave of duplexing schemes different from each other.

In the following description, the embodiment of the present invention for solving traditional problem is described in detail.

Fig. 4 is the example shown when the subframe of the special subframe of TDD cell and FDD cell is overlapped in time Figure.

Referring to Fig. 4, when being configured as polymerization using the cell (or component carrier) of frequency division duplex (FDD) scheme and use Divide the cell (or component carrier) of duplexing (TDD) scheme and manage in the carrier aggregation system that carrier wave polymerize, is shown in which The example that the special subframe 408 of TDD cell 402 and the subframe 403 of FDD cell 401 overlap each other in time.It is small for TDD Area 402, the UpPTS 407 of special subframe 408 is arranged to tool, and there are two the length of SC-FDMA symbol.It is assumed that for uplink Circuit-switched data transmission, UE are scheduling to execute physical uplink link sharing letter in the interim of the subframe 403 of FDD cell 401 by eNB The transmission in road (PUSCH), and in the biography of the interim of the UpPTS of the special subframe of TDD cell 402 408 407 execution SRS It is defeated.

PUSCH refers to the physical channel for carrying the uplink data that UE is sent to eNB.In order to estimate PUSCH, ginseng is sent Examine signal (RS) 409 and 410.Therefore, PUSCH is mapped to the interval 411,412 and 413 in subframe 403, in addition to 409 He of RS 410 symbols being located at, are then delivered to eNB.

ENB determine such as about the interim in UpPTS 407 whether send one or two SRS symbol condition, The setting of symbol of a SRS etc. is sent in UpPTS 407, and notifies the setting to UE via high-level signaling.

In this case, user needs to send out via FDD cell 401 simultaneously in interim corresponding with UpPTS 407 Send PUSCH and send SRS via TDD cell 402, and this may result in problem: PUSCH sends power and SRS sends function The sum of rate is more than the maximum allowable transmission power of UE.Therefore, it is necessary to define the specified sending method for PUSCH and SRS.

In the first embodiment, it defines under conditions of Fig. 4 is shown, when UE needs to send PUSCH to FDD cell simultaneously With specified operation when sending SRS to TDD cell.First embodiment provides UE and sends in UpPTS interim to TDD cell The method of two SRS symbols.

1) method 1

According to method 1, UE is only sent will be via second SRS code in two SRS symbols that TDD cell 502 is sent Member, without sending first SRS symbol；And it is executed in the last one symbol interval of subframe for being sent out via FDD cell 501 Thus the rate-matched of the PUSCH sent sends the PUSCH.In general, executing channel coding to increase the number for needing to send to UE According to error correcting capability.The size of the output bit flow of UE adjustment channel coding with flux matched with the resource dispatched by eNB, and Output bit flow is mapped to temporal frequency resource, this is known as rate-matched.

Method 1 is described referring to Fig. 5.In the special subframe 504 of TDD cell 502 with two SC-FDMA symbols During the corresponding interval UpPTS 507 of time interval, UE sends the 2nd SRS symbol 509, without sending the first SRS symbol 508.It is right In FDD cell 501, UE is not in the last one Chong Die with the sending time point of the 2nd SRS symbol 509 at the interval UpPTS 507 PUSCH is sent in the interval 510 of SC-FDMA symbol.UE can in the corresponding subframe 503 of FDD cell 501 in addition to last The uplink of channel coding during time interval except a SC-FDMA element position 510 and RS element position 512 and 513 Link data executes rate-matched, thus configures and sends PUSCH (511).Therefore, the angle of uplink signal is sent from UE It sees, avoids the appearance of following situation: at the interval of the special subframe 504 of the subframe 503 or TDD cell 502 of FDD cell 501 The particular point in time of period occurs simultaneously to the uplink signal of FDD cell 501 and TDD cell 502 to send, and thus solves PUSCH sends power and SRS sends the problem of the sum of power is more than the maximum allowable transmission power of UE.Method 1 has so that not The feature of each of PUSCH and SRS are sent to symbol one by one, and because every in transmission PUSCH and SRS without causing Excessive transmission loss in one.

2) method 2

Referring to Fig. 6, method 2 described below.According to method 2, in the special subframe 604 of TDD cell 602 with two During the corresponding section UpPTS 607 of the time interval of SC-FDMA symbol, UE sends the first SRS symbol 608 and the 2nd SRS symbol Both 609.For FDD cell 601, UE is not in the first SRS symbol 608 and the 2nd SRS symbol 609 with the interval UpPTS 607 PUSCH is sent in the interval 610 and 611 of most latter two SC-FDMA symbol of sending time point overlapping.UE can be to small in FDD Between time in the corresponding subframe 603 in area 601 other than most latter two SC-FDMA symbol and RS element position 613 and 614 Rate-matched is executed every the uplink data that the channel of period encodes, thus configures and sends PUSCH (612).Unlike SRS, when mistake occurs in the PUSCH sent by current subframe, which can be corrected by HARQ and re-transmission.Such as Upper described, method 2 has the characteristics that so that making the transmission preferences of SRS as far as possible.

3) method 3

Referring to Fig. 7, method 3 described below.According to method 3, in the special subframe 704 of TDD cell 702 with two During the corresponding section UpPTS 707 of the time interval of SC-FDMA symbol, UE does not send the first SRS symbol 708 and the 2nd SRS code Both members 709.For FDD cell 701, UE can be to the SC-FDMA in subframe 703 other than RS element position 711 and 712 The uplink data of channel coding in symbol carries out rate-matched, thus configures and sends PUSCH (710).Method 3 has Have so that make the transmission of PUSCH prior to SRS transmission the characteristics of.

4) method 4

Referring to Fig. 8, method 4 described below.According to method 4, in the special subframe 804 of TDD cell 802 with two During the corresponding section UpPTS 807 of the time interval of SC-FDMA symbol, UE sends the first SRS symbol 808 and the 2nd SRS symbol Both 809.For FDD cell 801, UE is in the SC-FDMA symbol in subframe 803 other than RS element position 811 and 812 Channel coding uplink data carry out rate-matched, thus configure and send PUSCH (810).

In this case, adjustment PUSCH sends power or SRS sends power so as to wherein simultaneously to FDD cell 801 During the section UpPTS 807 for sending uplink signal with TDD cell 802, PUSCH sends power and SRS sends the sum of power It may remain within the maximum allowable transmission power of UE.For example, during the section UpPTS 807, when PUSCH transmission is preferential, SRS sends the value for the level that power is adjusted to less than required transmission power, so that PUSCH sends power and SRS transmission The sum of power is maintained within the maximum allowable transmission power of UE.Alternatively, during the section UpPTS 807, when SRS is sent When preferential, PUSCH sends the value for the level that power is adjusted to less than required transmission power, so that PUSCH sends power The sum of power is sent with SRS to be maintained within the maximum allowable transmission power of UE.Alternatively, during the section UpPTS 807, SRS sends power and PUSCH sends the value for the level that each of power is adjusted to less than required transmission power, with Just the maximum UE that the sum of PUSCH transmission power and SRS transmission power are maintained at UE allows to send within power.

In general, PUSCH transmission power remains unchanged in a subframe for sending PUSCH, to simplify the behaviour of receiver Make.Therefore, it according to an embodiment, is sent when adjusting PUSCH during the SC-FDMA symbol interval Chong Die with the interval UpPTS 807 Power and when sending PUSCH, the value that PUSCH adjusted sends power also can be applied to sends PUSCH's in subframe In the interval of remaining symbol and the SC-FDMA symbol interval Chong Die with the interval UpPTS 807.

When the transmission power of UE is adjusted, eNB can: determine about be make SRS signal send it is preferential, be to make PUSCH Signal sends the condition for preferentially, still not considering that priority makes SRS signal transmission and PUSCH channel send equality；Then via High-level signaling notifies the condition to UE.

Lead to via high-level signaling to UE in addition, method 1 is defined as method to be applied or eNB to one in method 4 Know method predetermined.Alternatively, be the state of initial transmission or re-transmission according to PUSCH transmission in another embodiment, One into method 4 of method 1 can be defined as method to be applied.For example, being answered when PUSCH transmission is initial transmission Preferential method 3 is sent with wherein PUSCH.When PUSCH transmission is to retransmit, preferential method 2 is sent using wherein SRS.When PUSCH transmission is when retransmitting, to pass through the HARQ procedure of the combination PUSCH initially sent and the PUSCH of re-transmission, the receiver of eNB There is the more high probability that PUSCH is successfully decoded.Therefore, in retransmitting PUSCH, SRS, which is sent, has relatively high priority.

In a second embodiment, under conditions of Fig. 4 is shown, definition when UE need simultaneously to FDD cell send PUSCH and Specified operation when sending from SRS to TDD cell.Second embodiment, which is provided, sends two to TDD cell in UpPTS interim UE SRS symbol and the method for sending PUSCH and SRS to FDD cell.

1) method 1

Referring to Fig. 9, method 1 described below.According to method 1, in the two SRS symbols to be sent via TDD cell 902 In, UE only sends the 2nd SRS symbol 909, without sending the first SRS symbol 908.In addition, method 1 will be via FDD cell 901 The SRS of transmission is mapped to the last one symbol in subframe 903 and sends result (910) to FDD cell 901.In addition, method 1 pair in subframe 903 in addition to RS element position 912 and 913 and send SRS the last one element position 910 other than The data that FDD cell 901 is sent to during time interval execute rate-matched, thus configuration and transmission PUSCH (911).

In this case, UE can adjust separately the transmission power for being sent to the SRS 910 of FDD cell 901 and transmission The power that sends to the SRS 909 of TDD cell 902 sends the sum of power and the transmission power of SRS 909 no so as to SRS 910 Maximum allowable transmission power more than UE.It can determine that the SRS to be adjusted sends the amount of power according to priority.For example, working as It is separately sent to the SRS symbol 910 and 909 of 902 cell of FDD cell 901 and TDD, when there is same importance, is sent to The transmission power of the SRS 910 of FDD cell 901 and be sent to TDD cell 902 SRS 909 transmission power by identical ratio Example reduces, so that the sum of the transmission power adjusted of SRS 910 and transmission power adjusted of SRS 909 are no more than UE's Maximum allowable transmission power.When the SRS 910 for being sent to FDD cell 901 is preferential, it is sent to the SRS 909 of TDD cell 902 Send power by relatively bigger ratio reduction, and be sent to the transmission power of the SRS 910 of FDD cell 901 by relatively more Small ratio is reduced or is not reduced, so as to the transmission power adjusted of the transmission power and SRS 909 adjusted of SRS 910 The sum of be no more than UE maximum allowable transmission power.According to embodiment, eNB can priority between the determination SRS to be sent And pass through the high-level signaling priority determining to UE notice.

2) method 2

Referring to Fig.1 0, method 2 described below.According to method 2, UE in the special subframe 1004 of TDD cell 1002 with The first SRS symbol 1008 and the 2nd SRS are sent during the corresponding interval UpPTS 1007 of the time interval of two SC-FDMA symbols Symbol 1009.

The SRS for being sent to FDD cell 1001 is mapped to the last one symbol 1001 in subframe 1003, and then by It sends.Like that, UE can be adjusted separately according to the priority between the SRS to be sent and is sent to FDD cell image space method 1 The transmission power of the transmission power of 1001 SRS 1010 and the SRS 1009 for being sent to TDD cell 1002, so as to SRS 1010 The sum of transmission power for sending power and SRS 1009 be no more than the maximum allowable transmission power of UE.

For the uplink data of FDD cell 1001 to be sent to, UE in subframe 1003 in addition to RS symbol position Set the uplink number of the channel coding on the interval except 1013 and 1014 and the interval Chong Die with the interval UpPTS 1007 According to rate-matched is executed, thus configuration and transmission PUSCH (1012).Therefore, for the penultimate symbol of subframe 1003 1011, uplink signal transmission is not executed.

Method 2 has the characteristics that one, so that two SRS symbols are sent to TDD cell 1002 as far as possible, but regardless of due to matching How the PUSCH that the number for setting the symbol of PUSCH for being sent to FDD cell 1001 is reduced and be may cause sends loss, thus ENB is allowed relatively precisely to measure the channel status of TDD cell 1002.

3) method 3

Referring to Fig.1 1, method 3 described below.According to method 3, UE in the special subframe 1104 of TDD cell 1102 with The first SRS symbol 1108 and the 2nd SRS are sent during the corresponding interval UpPTS 1107 of the time interval of two SC-FDMA symbols Both symbols 1109.In addition, SRS is mapped to the last one symbol in subframe 1103 by method 3 for FDD cell 1101 1110 and send result.In addition, method 3 in subframe 1103 in addition to RS element position 1112 and 1113 and described The uplink data of channel coding during time interval except the symbol 1110 that SRS is be mapped to executes rate Match, thus configuration and transmission PUSCH (1111).

In this case, it is sent in the uplink for being wherein performed simultaneously FDD cell 1101 and TDD cell 1102 During the interval UpPTS 1107, UE can adjust separately the transmission power and hair for being sent to the uplink signal of FDD cell 1101 The transmission power of the uplink signal of TDD cell 1102 is sent to, to be sent to the uplink signal of FDD cell 1101 It sends power and is sent to the maximum allowable transmission for sending the sum of power and being no more than UE of the uplink signal of TDD cell 1102 Power.In addition, identical with method 1, method 3 defines priority, and root according to the type of cell or uplink transmission signals It is adjusted according to defined priority and sends power.

It is remained unchanged in the subframe for sending PUSCH in general, PUSCH sends power, to simplify the operation of receiver.Cause This, according to one embodiment, when during the SC-FDMA symbol interval Chong Die with the interval UpPTS 1107 with PUSCH adjusted When sending power transmission PUSCH, the value that PUSCH adjusted sends power also can be applied to send PUSCH's in subframe Remaining symbol and the SC-FDMA symbol interval Chong Die with the interval UpPTS 1107.

Identical with first embodiment, the second embodiment of the present invention executes in this way: method 1 is into method 3 One be predefined method predetermined notified to UE by high-level signaling for method to be applied or eNB.Alternatively Ground is in another embodiment the condition of initial transmission or re-transmission according to PUSCH transmission, one in method 1 and method 3 It can be defined as method to be applied.For example, being sent preferentially when PUSCH transmission is initial transmission using wherein PUSCH Method 1.When PUSCH transmission is to retransmit, preferential method 2 is sent using wherein SRS.When PUSCH transmission is to retransmit, eNB Receiver have PUSCH be successfully decoded more by the HARQ procedure for the PUSCH for combining the PUSCH initially sent and re-transmission High probability.Therefore, SRS, which is sent in retransmit, has relatively high priority in PUSCH.

The first and second embodiments can also be modified in this way, to define about in the 2 symbol interval phase of UpPTS Between UE to FDD cell send PUSCH and to TDD cell send random access lead code situation operation.Generally speaking, in order to Extra error correction handles PUSCH by HARQ procedure.When the sending time of PUSCH and random access lead code point overlaps each other When, modification, which can be, keeps the transmission of random access lead code preferential.Because of the length of the random access lead code in the interval UpPTS Degree is the interval of 2 fixed symbols, so first embodiment also can be used in modification method 2 and method 4 and second are in fact The method 2 and method 3 of example are applied, this can send the uplink signal of 2 symbols in UpPTS.In this case, in detail Thin description can be described to substitute by those of the first and second embodiments, wherein only SRS is replaced by random access lead code. The receptivity decline of random access lead code in order to prevent, in the transmission power of UpPTS interim random access lead code Steady state value can be remained.

<3rd embodiment>

In the third embodiment, under conditions of Fig. 4 is shown, definition when UE need simultaneously to FDD cell send PUSCH and Specified operation when sending from SRS to TDD cell.3rd embodiment provide UpPTS interim UE first code element position to The method of TDD cell transmission SRS symbol

1) method 1

According to method 1, UE by using all symbols in subframe to be sent to the PUSCH of FDD cell 1201 to It sends, without the SRS symbol to be sent to TDD cell 1202.Referring to Fig.1 2, method 1 described below.UE is small in TDD The SRS symbol 1208 for requiring to send is not sent in the special subframe 1204 in area 1202.For FDD cell 1201, UE for from All symbols in subframe 1203 exclude RS element position 1210 and 1211 symbol interval (including with 1207 weight of the interval UpPTS Folded interval) on channel coding uplink data execute rate-matched, thus configuration and send PUSCH (1209). Therefore, it from the UE angle for sending uplink signal, avoids wherein in 1204 phase of the interval of subframe 1203 or special subframe Between sometime point on the situation that sends of uplink signal while occur to FDD cell 1201 and TDD cell 1202, To solve the problems, such as that PUSCH sends power and SRS sends the maximum allowable transmission power that the sum of power is more than UE.Method 1 has Have the characteristics that so that it does not send the SRS and thus PUSCH of TDD cell 1202 transmission it is preferential.

2) method 2

Referring to Fig.1 3, method 2 described below.According to method 2, UE in the special subframe 1304 of TDD cell 1302 with The first SRS symbol is sent at the first code element position at the corresponding interval UpPTS 1307 of the time interval of two SC-FDMA symbols 1308.For FDD cell 1301, during the interval UpPTS 1307, UE is Chong Die with the sending time of SRS symbol 1308 point PUSCH is not sent in the interval 1310 of SC-FDMA symbol.UE in the corresponding subframe 1303 of FDD cell 1301 in addition to RS Except element position 1312 and 1313 and the SC-FDMA element position 1310 Chong Die with the sending time of SRS symbol 1308 point Time interval 1309 during the uplink data of channel coding execute rate-matched, to configuration and send PUSCH.

3) method 3

Referring to Fig.1 4, method 3 described below.According to method 3, UE in the special subframe 1404 of TDD cell 1402 with SRS symbol is sent at first code element position during the corresponding interval UpPTS 1407 of the time interval of two SC-FDMA symbols 1408.For FDD cell 1401, UE in subframe 1403 in addition to RS element position 1412 and 1413 and with UpPTS 1407 Sending time point overlapping most latter two SC-FDMA element position 1410 and 1411 except time interval on channel compile The uplink data of code executes rate-matched, thus configuration and transmission PUSCH (1409).Method 3 has the transmission ratio of SRS The preferential feature of the transmission of PUSCH.

4) method 4

Referring to Fig.1 5, method 4 described below.According to method 4, UE in the special subframe 1504 of TDD cell 1502 with SRS symbol is sent at first code element position during the corresponding interval UpPTS 1507 of the time interval of two SC-FDMA symbols 1508.For FDD cell 1501, UE is in the symbol other than RS element position 1511 and 1512 in subframe 1503 The uplink data of channel coding executes rate-matched, thus configuration and transmission PUSCH (1410).

In this case, PUSCH sends power or SRS sends power and is adjusted so that uplink signal wherein It is sent simultaneously in the position of the SRS symbol 1508 at the interval UpPTS 1507 of FDD cell 1501 and TDD cell 1502, PUSCH sends power and SRS sends the sum of power and may remain within the maximum allowable transmission power of UE.For example, working as PUSCH When sending preferential, SRS sends the value for the level that power is adjusted to less than required transmission power, so, in SRS symbol At 1508 position, PUSCH sends power and SRS sends the sum of power and is maintained in the maximum allowable transmission power of UE.It can replace Ground is changed, when SRS transmission is preferential, PUSCH sends the value for the level that power is adjusted to less than required transmission power, so as to At the position of SRS symbol 1508, PUSCH sends power and SRS sends the maximum allowable transmission function that the sum of power is maintained at UE In rate.Alternatively, SRS sends power and PUSCH sends each of power and is adjusted to less than required transmission function The value of the level of rate, so that PUSCH sends power in the position of SRS symbol 1508 and SRS sends the sum of power and is maintained at UE Maximum allowable transmission power in.

It is remained unchanged in a subframe for sending PUSCH in general, PUSCH sends power, to simplify the behaviour of receiver Make.Therefore, according to one embodiment, when the position of SRS symbol 1508 adjustment PUSCH sends power and sends PUSCH, The value that PUSCH adjusted sends power also can be applied in subframe send remaining symbol of PUSCH interval and The SC-FDMA symbol interval Chong Die with wherein the position of SRS symbol 1508 is sent during the interval UpPTS 1507.

When the transmission power of UE is adjusted, eNB can determine about be make SRS signal send it is preferential, be to believe PUSCH Number send it is preferential, still make that SRS signal is sent and PUSCH signal sends equality but regardless of the condition of priority, and then lead to It crosses high-level signaling and notifies the condition to UE.

In addition, method 1 to one in method 4 be predefined for method to be applied or eNB by high-level signaling to UE notifies method predetermined.It alternatively, in another embodiment, is initial transmission or re-transmission according to PUSCH transmission Condition, one into method 4 of method 1 can be defined method to be applied.For example, when PUSCH transmission is initial transmission When, preferential method 1 is sent using wherein PUSCH.When PUSCH transmission is to retransmit, preferential method is sent using wherein SRS 2 or method 3.When PUSCH transmission is re-transmission, the receiver of eNB is with the PUSCH's and re-transmission initially sent by combination The HARQ procedure of PUSCH and the more high probability that PUSCH is successfully decoded.Therefore, SRS is sent in retransmit in PUSCH and have relatively more High priority.

In the fourth embodiment, under conditions of Fig. 4 is shown, definition when UE need simultaneously to FDD cell send PUSCH and Specified operation when sending from SRS to TDD cell.Fourth embodiment provide UE UpPTS interim first code element position to The method that TDD cell sends SRS symbol and sends PUSCH and SRS to FDD cell.

1) method 1

Referring to Fig.1 6, method 1 described below.According to method 1, the SRS that UE will be sent to FDD cell 1601 is mapped to son It the last one symbol in frame 1603 and is sent to FDD cell 1601 as a result, to be sent to TDD cell 1602 without sending SRS symbol (1610).In addition, method 1 is in addition to RS element position 1612 and 1613 and sending SRS's in subframe 1603 The data that FDD cell 1601 is sent to during time interval except the last one symbol interval 1610 execute rate-matched, To configure and send PUSCH (1611).Method 1 has the transmission so as to the uplink signal to FDD cell 1601 (that is, transmission of PUSCH and SRS) priority of disposing order is with the feature with priority.

2) method 2

Referring to Fig.1 7, method 2 described below.According to method 2, UE in the special subframe 1704 of TDD cell 1702 SRS symbol is sent at the first code element position at the interval UpPTS corresponding with the time interval of two SC-FDMA symbols 1707 1708。

According to method 2, the SRS that UE will be sent to FDD cell 1701 is mapped to the last one symbol in subframe 1703 And result (1710) are sent to FDD cell 1701.For the uplink data of FDD cell 1701 to be sent, UE is in son What the channel on the interval other than RS element position 1712 and 1713 and the interval UpPTS 1707 in frame 1703 encoded Uplink data executes rate-matched, thus configuration and transmission PUSCH (1711).Therefore, for reciprocal the of subframe 1703 Two symbols 1709 do not execute uplink signal transmission.

Method 2 has the characteristics that one, so that SRS symbol is sent to TDD cell 1702 as far as possible, although since configuration is sent to The reduction of the code element number of the PUSCH of FDD cell 1701 may cause PUSCH transmission loss, so that eNB be allowed to measure TDD cell 1702 channel status.

3) method 3

Referring to Fig.1 8, method 3 described below.According to method 3, UE in the special subframe 1804 of TDD cell 1802 with SRS symbol is sent in first code element position during the corresponding interval UpPTS 1807 of the time interval of two SC-FDMA symbols 1808.In addition, method 3 is by the last one symbol 1810 that SRS is mapped in subframe 1803 and sends out for FDD cell 1801 Give the result.In addition, method 3 in the subframe 1703 of FDD cell 1801 in addition to RS element position 1811 and 1812 and The uplink data of channel coding during time interval except the symbol 1810 that SRS is mapped to executes rate Match, thus configuration and transmission PUSCH (1809).

In this case, in the uplink signal hair for being wherein performed simultaneously FDD cell 1801 and TDD cell 1802 In the SRS element position 1808 for the TDD cell 1802 sent, UE can adjust separately the uplink for being sent to FDD cell 1801 The transmission power of the transmission power of signal and the uplink signal for being sent to TDD cell 1802, to be sent to FDD cell The transmission power of 1801 uplink signal and it is sent to the sum of transmission power of uplink signal of TDD cell 1802 no Maximum allowable transmission power more than UE.In addition, the method 4 with 3rd embodiment is identical, method 3 is according to cell or uplink The type definition priority of signal is transmitted, and adjusts transmission power according to defined priority.

It is remained unchanged in a subframe for sending PUSCH in general, PUSCH sends power, to simplify the behaviour of receiver Make.Therefore, according to one embodiment, during the interval UpPTS 1807, when in FDD cell 1801 with SRS symbol 1808 When adjusting PUSCH transmission power at the corresponding position in position and sending PUSCH, PUSCH adjusted sends the value of power It can be applied to the interval that remaining symbol of PUSCH is sent in subframe and the position weight with wherein transmission SRS symbol 1808 Folded SC-FDMA symbol interval.

In addition, it is to be applied that method 1 can be predefined to one in method 3 as in first embodiment Method or eNB can notify method predetermined to UE by high-level signaling.In addition, in another embodiment, according to about PUSCH transmission is the condition of initial transmission or re-transmission, and method method 1 can be defined as and apply to one in method 3 Method.For example, sending preferential method 1 using wherein PUSCH when PUSCH transmission is initial transmission.When PUSCH is sent It is that when retransmitting, preferential method 2 is sent using SRS.When PUSCH transmission is to retransmit, the receiver of eNB has through combination just It originates the HARQ procedure of the PUSCH of the PUSCH and re-transmission that send and the more high probability of PUSCH is successfully decoded.Therefore, SRS is sent in Retransmitting has relatively high priority in PUSCH.

In the 5th embodiment, under conditions of being shown in FIG. 4, definition includes when UE needs to send to FDD cell simultaneously Specified operation when the PUSCH of uplink control information (UCI) is arrived and sent from SRS to TDD cell.

Uplink control information (UCI) refers to that UE passes through the control information that uplink is sent to eNB.UCI includes: ACK/NACK, indicate about the down link data sent from eNB to UE whether the condition for Shi Baiing；Channel quality indicator (CQI), downlink channel status is indicated；Order index accords with (RI), indicates the order of downlink channel；Precoding matrix indicators (PMI), precoding information is indicated；Etc..Compared with other factors, ACK/NACK and RI require relatively high reception ability.Cause This, when ACK/NACK and RI is multiplexed on PUSCH with uplink data, it is attached that the mapping in time domain is fixed on RS Closely.This leads to relatively high channel estimation gains, and also leads to relatively high reception ability.

Referring to Fig.1 9, in subframe, ACK/NACK can be respectively close to 1915 He of symbol of RS 1909 and RS 1910 1916 and symbol 1919 and 1920 position in uplink data be multiplexed.RI can be in the mapping position phase with ACK/NACK It is multiplexed in the position of adjacent symbol 1914,1917,1918 and 1921 with uplink data.

When sending SRS during the interval UpPTS 1907 in TDD cell 1902, first has portion into fourth embodiment The uplink signal that point method cannot go to the position for the symbol 1921 that RI can be mapped to is sent.Therefore, when RI with It, can be using the method for the transmission that can guarantee symbol 1921, example when uplink data multiplexes and when result is sent Such as, the method 1 of first embodiment, method 3, method 4；The method 1 and method 3 of second embodiment；1 He of method of 3rd embodiment Method 4；And the method 1 and method 3 of fourth embodiment.

Figure 20 is the flow chart for describing the operation of eNB according to an embodiment of the present invention.

Referring to Figure 20, operate 2001, eNB transmission cycle can be set, for resource of SRS transmission etc. as about UE SRS transmission control information, and notify the setting to UE.Control information can be configured by high-level signaling.

2002, eNB is being operated to UE allocation schedule so that UE (can send PUSCH in the n-th subframe in subframe n).It is grasping Make 2003, eNB and determines whether the sending time point of the SRS and PUSCH of UE overlap each other in the n-th subframe.

When eNB determines that the sending time point of the SRS and PUSCH of UE do not overlap each other in the n-th subframe in operation 2003 When, in operation 2005, the PUSCH sent from UE can be received in the n-th subframe.

On the other hand, when the sending time point phase of the eNB determining SRS and PUSCH of UE in the n-th subframe in operation 2003 Mutually when overlapping, in operation 2004, PUSCH and SRS can be received from UE by using the method for the first to the 5th embodiment.Due to Described above is the methods, so the detailed description to them is omitted below.It can make a reservation between UE and eNB to be applied Method.Alternatively, eNB notifies method predetermined to UE by high-level signaling.Height can be executed before operation 2002 The processing of layer signaling, wherein eNB is scheduled so that UE can send PUSCH in operation 2002.

Figure 21 depicts the flow chart of the operation of UE according to an embodiment of the invention.

Referring to Figure 21, transmission cycle can be obtained from eNB, for the conduct such as resource of SRS transmission pass operating 2101, UE In the control information that SRS is sent.Control information can be configured by high-level signaling.

It is dispatched operating 2102, UE by eNB (to send PUSCH in subframe n) in the n-th subframe.In operation 2103, the UE is true Whether the sending time point for being scheduled on SRS and PUSCH in the n-th subframe overlaps each other.

When operating that UE determines that the sending time point of SRS and PUSCH is not overlapped in 2103, in operation 2105, Neng Gou N-th subframe sends PUSCH.

On the other hand, it overlaps each other when in the determining sending time point of SRS and PUSCH in n-th frame of 2103, UE of operation When, in operation 2104, SRS and PUSCH can be sent in the n-th subframe by using the method for the first to the 5th embodiment.By It has been described in detail in embodiment in front and has described in it, so being omitted below.

For convenience, it omits of the invention to avoid obscuring to the detailed description of the known function and structure that are incorporated to herein Theme.With reference to Figure 22, UE can include FDD cell transmitter 2230, TDD cell transmitter 2250 and controller 2210.FDD is small Area's transmitter 2230 includes PUSCH block 2231, multiplexer 2233 and transmission radio block 2235.TDD cell transmitter 2250 Including SRS block 2251, multiplexer 2253 and send radio block 2255.Controller 2210, which can control, is included in FDD cell Component in transmitter 2230 and TDD transmitter 2250, with by using the method for embodiment as described above, referring to from eNB Received control information is sent and the relevant operation of SRS transmission to execute to the PUSCH of UE.

The PUSCH block 2231 of FDD cell transmitter 2230 is created by executing the processing of channel coding, modulation etc. The PUSCH of uplink data.When there is UE the uplink that be sent to FDD cell to send signal, multiplexer The uplink is sent signal by 2233 to be multiplexed with the PUSCH created.Send the letter of the processing multiplexing of radio block 2235 Number, and treated signal is sent to eNB.

The SRS block 2251 of TDD cell transmitter 2250 creates SRS signal according to the setting of eNB.It to be sent to when UE has When the uplink of TDD cell sends signal, the uplink is sent signal and the SRS that is created by multiplexer 2253 Signal multiplexing.The signal of the processing multiplexing of radio block 2255 is sent, and sends treated signal to eNB.

Referring to Figure 23, eNB can include FDD cell receiver 2330, TDD cell receiver 2350 and controller 2310. FDD cell receiver 2330 includes PUSCH block 2331, demultiplexer 2333 and reception radio block 2335.TDD cell receiver 2350 include SRS block 2351, demultiplexer 2353 and reception radio block 2355.Controller 2310 can control that be included in FDD small The component of area's receiver 2330 and TDD cell receiver 2350, to execute by using the method for embodiment described above The operation relevant to the reception of SRS and PUSCH sent from UE of eNB.

FDD cell receiver 2330: processing is via receiving radio block 2335 from UE received signal；Via demultiplexer 2333 isolate PUSCH signal from treated signal；And it executes such as demodulation, channel via PUSCH2331 block to decode Etc. processing, to obtain uplink data.

TDD cell receiver 2350: processing is via receiving radio block 2355 from UE received signal；Via demultiplexer 2353 isolate SRS signal from treated signal；And uplink channel state information is obtained via SRS block 2351.

In the sixth embodiment, definition is when UE needs while controlling via the physical uplink link for sending control information When the transmission of channel (PUCCH) 2411 uplink control information (UCI) sends SRS to FDD cell 2401 and to TDD cell 2402 Specified operation.Since UCI has been described in detail in the 5th embodiment, description is arrived to it so will omit below.

1) method 1

Method 1 be related to wherein SRS transmission intercal be the last one symbol in subframe situation.

Referring to Figure 24, when the sending time of PUCCH 2411 and SRS 2409 point are overlapped in same subframe, this Kind situation is using the PUCCH format shortened, and wherein the last one symbol interval 2410 of the PUCCH 2411 in subframe is not used in Transmission.Therefore, user can be during the time interval other than the last one symbol interval 2410 with the PUCCH lattice of shortening Formula sends UCI.UE sends SRS 2409 during the last one symbol interval of subframe.This process can prevent PUCCH 2411 and SRS 2409 is sent simultaneously at same time point, so that the sum of instantaneous transmission power of UE be kept to permit in the maximum of UE Perhaps it sends in power.

UE can be prenoticed the condition that the PUCCH format of shortening whether can be used about it by eNB by signaling.Root According to one embodiment, allow when UE notifies it not by eNB using the PUCCH format and PUCCH of shortening and the sending time of SRS When point overlaps each other in same subframe, it sends PUCCH during the entire time interval of subframe；However, it may not send out Send SRS.

2) method 2

The transmission intercal that method 2 is related to wherein SRS is last two code elements or symbol second from the bottom in subframe.

As shown in figure 4, when the UpPTS 407 in the special subframe of TDD cell 402 is arranged to have and two SC- The corresponding length of FDMA symbol, and to the SRS of TDD cell 402 it is sent in the two code elements of UpPTS 407 or in UpPTS 407 First code element interval in when executing, need to define the operation for the operation for being different from method 1.

That is, when UE is allowed it to use the PUCCH format shortened and the transmission of PUCCH 2411 and SRS from eNB notice When time point overlaps each other in same subframe, UE can be in the time other than the last one symbol interval 2410 of subframe Interim sends UCI with the PUCCH format shortened.UE sends TDD cell 2402 in the last one symbol interval of subframe SRS 2409.UE does not send the TDD cell 2402 for having planned to send in the interval of the penultimate symbol 2408 of subframe SRS.

On the other hand, allow when UE notifies it not by eNB using the PUCCH format and PUCCH of shortening and the transmission of SRS When time point overlaps each other in same subframe, it sends PUCCH 2411 but does not send during the entire time interval of subframe SRS。

Referring to Figure 24, when UE is set using the PUCCH format shortened, the detailed description about method 2 be provided as Under.

Under conditions of UE is arranged to the PUCCH format using shortening, special subframe 2404 of the UE in TDD cell 2402 In the interval UpPTS corresponding with the time interval of two SC-FDMA symbols 2407 during do not send the first SRS symbol 2408 but It is to send the 2nd SRS symbol 2409.In this case, for FDD cell 2401, UE is not in the interval UpPTS 2407 PUCCH is sent in the last one SC-FDMA symbol interval 2410 of the sending time point overlapping of two SRS symbols 2409.In addition, UE Can: in addition to the last one SC-FDMA element position 2410 and RS symbol position in the corresponding subframe 2403 of FDD cell 2401 During setting the time interval except 2412 and 2413, the UCI encoded from channel configures PUCCH with the PUCCH format shortened 2411；And send it.According to embodiment, the RS element position 2412 and 2413 in the transmission of PUCCH be may differ from RS element position in the transmission of PUSCH (for example, shown in Fig. 5 512 and 513).

Referring to Figure 25, is operating 2501, eNB setting control information relevant to the PUCCH of UE transmission and be somebody's turn to do to UE notice Setting.Control information may include the condition that the PUCCH format etc. of shortening whether is allowed to use about UE.According to embodiment, Control information can be configured by high-level signaling.

Control information relevant to the SRS of UE transmission can be set operating 2502, eNB, such as transmission cycle is used for Resource of SRS transmission etc., and the setting is notified to UE.According to embodiment, control information can be configured by high-level signaling.

The embodiment can also be modified by a manner of such, wherein operation 2502 it is more early than operation 2501 execute or they It is performed simultaneously.

It determines operating 2503, eNB for the UE from the n-th subframe (subframe #n) that UE receives uplink signal Whether the sending time point of SRS and the PUCCH for UCI transmission overlap each other.ENB can be arranged according in operation 2502 Information determines the SRS sending time point of UE.According to embodiment, when eNB is at the time point of subframe #n-4 corresponding with subframe #n When sending down link data to UE, it detects that UE sends the subframe #n comprising HARQ-ACK/NACK by PUCCH.

When the sending time point of SRS and PUCCH for operating eNB in 2503 and determining UE does not overlap each other, operating 2506, the PUCCH sent from UE can be received by subframe #n.In this case, PUCCH is without the PUCCH shortened The common PUCCH of format.

On the other hand, when operation 2503 in eNB determine in subframe #n the SRS and PUCCH of UE sending time point that When this overlapping, in operation 2504, it is determined that whether UE is arranged to the PUCCH format using shortening.

It, can in operation 2505 when eNB determines that UE is arranged to the PUCCH format using shortening in operation 2504 According to the method 1 or method 2 of sixth embodiment, the SRS and PUCCH of the PUCCH format shortened are received from UE.That is, working as the biography of SRS When defeated interval is the last one symbol in subframe, eNB can receive SRS and PUCCH by the method 1 of sixth embodiment.When When the transmission intercal of SRS is last two code elements or penultimate symbol in special subframe, eNB can be real by the 6th The 2 of example are applied to receive SRS and PUCCH.Due to explaining detailed description in embodiment in front, so detailed description is omitted.

On the other hand, when eNB determines that UE is not set to the PUCCH format using shortening in operation 2504, Operation 2506 can receive the PUCCH sent from UE.In this case, PUCCH is without the PUCCH format shortened Common PUCCH.

Referring to Figure 26, setting information relevant to PUCCH transmission is obtained from eNB operating 2601, UE.The setting information can Comprising controlling information, the condition of PUCCH format etc. of shortening such as whether is allowed to use about UE.

Control information relevant to SRS transmission can be obtained from eNB operating 2602, UE, such as transmission cycle is used for Resource of SRS transmission etc..According to embodiment, the control information can be configured by high-level signaling.

The embodiment can also be modified in this way, and 2602 ratio of operation operates 2601 early execution or they are held simultaneously Row.

It determines operating 2603, UE whether the sending time point of n-th frame (subframe #n) interior SRS and PUCCH overlaps each other. UE can determine SRS sending time point according to the SRS setting information obtained in operation 2602.According to embodiment, when eNB with When the time point of the corresponding subframe #n-4 of subframe #n sends down link data to UE, it includes HARQ- that UE is sent by PUCCH The subframe #n of ACK/NACK.

When UE determines that the sending time point of SRS and PUCCH does not overlap in subframe #n in operation 2603, grasping Make that PUCCH can be sent by subframe #n in 2606.In this case, PUCCH is without the general of the PUCCH format shortened Logical PUCCH.

On the other hand, when operation 2603 in UE determine in subframe #n the sending time point of SRS and PUCCH overlap each other When, in operation 2604, determine whether it is arranged to the PUCCH format using shortening according to eNB setting information.

When operating that UE determines that it is set as by eNB the PUCCH format using shortening in 2604, in operation 2605, it SRS and PUCCH can be sent with the PUCCH format of shortening according to the method 1 or method 2 of sixth embodiment.That is, working as the biography of SRS When defeated interval is the last one symbol in subframe, UE can receive SRS and PUCCH by the method 1 of sixth embodiment.When When the transmission intercal of SRS is last two code elements or penultimate symbol in special subframe, UE can be implemented by the 6th The method 2 of example receives SRS and PUCCH.Due to explaining detailed description in embodiment in front, so it is omitted below ?.

On the other hand, when UE determines that it is not set as the PUCCH format using shortening by eNB in operation 2604, In operation 2606, it can send PUCCH.In this case, PUCCH is without the common of the PUCCH format shortened PUCCH。

For convenience, it omits of the invention to avoid obscuring to the detailed description of the known function and structure that are incorporated to herein Theme.With reference to Figure 27, UE can include FDD cell transmitter 2730, TDD cell transmitter 2750 and controller 2710.FDD is small Area's transmitter 2730 includes PUCCH block 2731, multiplexer 2733 and transmission radio block 2735.TDD cell transmitter 2750 Including SRS block 2751, multiplexer 2753 and send radio block 2755.Controller 2710 can be controlled to be sent in FDD cell The component for including in device 2730 and TDD cell transmitter 2750, with reference from the received control information of eNB, by using above-mentioned The method of sixth embodiment executes operation relevant to the PUCCH of UE transmission and SRS transmission.

The PUCCH block 2731 of FDD cell transmitter 2730 by executing such as channel coding, use by the processing creation modulated etc. In the PUCCH of UCI.When there is UE the uplink that be sent to FDD cell to send signal, multiplexer 2733 is by uplink Link sends signal and is multiplexed with the PUCCH created.It sends the signal of the processing multiplexing of radio block 2735 and is sent to eNB Treated signal.

The SRS block 2751 of TDD cell transmitter 2750 creates SRS signal according to the setting of eNB.It to be sent to when UE has When the uplink of TDD cell sends signal, the uplink is sent signal and the SRS that is created by multiplexer 2753 Signal multiplexing.The signal of the processing multiplexing of radio block 2755 is sent, and signal is sent to eNB by treated.

Although it is not shown, the FDD cell transmitter 2730 of UE may further include PUSCH block.In such case Under, controller 2710 can be controlled including the component in FDD cell transmitter 2730 and TDD cell transmitter 2750, with logical It crosses and executes and sent with the PUSCH of UE referring to from the received control signal of eNB using the method for the above-mentioned first to the 5th embodiment Relevant operation is sent with SRS.

Figure 28 is the block diagram for showing eNB receiving device according to another embodiment of the present invention.

Referring to Figure 28, eNB may include FDD cell receiver 2830, TDD cell receiver 2850 and controller 2810. FDD cell receiver 2830 includes PUCCH block 2831, demultiplexer 2833 and reception radio block 2835.TDD cell receiver 2850 include SRS block 2851, demultiplexer 2853 and reception radio block 2855.Controller 2810 can control that be included in FDD small Component in area's receiver 2830 and TDD cell receiver 2850 is executed in method by using above-mentioned sixth embodiment The operation relevant to the reception of SRS and PUCCH sent from UE of eNB.

FDD cell receiver 2830: processing is by receiving radio block 2835 from UE received signal；Pass through demultiplexer 2833 isolate PUCCH signal from treated signal；And such as demodulation, channel decoding are executed by PUCCH block 2831 Etc. processing, to obtain UCI.

TDD cell receiver 2850: processing is by receiving radio block 2855 from UE received signal；Pass through demultiplexer 2853 isolate SRS signal from treated signal；And uplink channel state information is obtained by SRS block 2851.

Although it is not shown, the FDD cell receiver 2830 of eNB may further include PUSCH block.In such case Under, controller 2810 can be controlled including the component in FDD cell receiver 2830 and TDD cell receiver 2850, with logical It crosses and executes operation relevant to the reception of SRS and PUSCH sent from UE using the method for the above-mentioned first to the 5th embodiment.

The embodiment of the present invention described in description and attached drawing is provided merely for assisting to fully understand the present invention simultaneously And it does not prompt to limit.It should be understood that the present invention may include all modifications in the design and technical scope of the disclosure and/ Or equivalent and/or replacement.

Although the embodiment of the present invention has already been described in detail above, it should be appreciated that, basic invention structure described herein The many deformations and modification thought may clearly, will still be fallen in the following claims to those skilled in the art In the spirit and scope of the embodiment of the present invention of definition.

Claims

1. a kind of method for sending the terminal of detection reference signal SRS, this method comprises:

It is received in uplink pilot time slot UpPTS for being configured in two code elements in first community by high-level signaling The information that SRS is sent, first community operate in Time Division Duplex TDD mode；

Identify uplink control information in second community send whether with the institute in the first subframe in first community It states SRS sending overlap and whether configures using the physical uplink control channel PUCCH format shortened, second community exists It is operated in fdd mode；And

It sends and the SRS sending overlap in the first subframe in first community and configures in uplink control information In the case where PUCCH format using shortening, sent out in the second code element in first community in the first subframe, in UpPTS Send SRS.

2. according to the method described in claim 1, further include:

In second community in the first subframe, uplink control information is sent using the PUCCH format of shortening.

3. according to the method described in claim 1, further include:

The SRS stopped in the first code element in first community in the first subframe, in UpPTS is sent.

4. according to the method described in claim 1, further include:

It sends and the SRS sending overlap in the first subframe in first community and does not have in uplink control information In the case that configuration uses the PUCCH format shortened, uplink control information is sent in the first subframe in second community.

5. according to the method described in claim 1, further include:

It identifies that the uplink data in second community is sent to send with the SRS in the second subframe in first community Whether it is overlapped；

Uplink in second community sends the feelings with the SRS sending overlap in the second subframe in first community Under condition, in the second code element in first community in the second subframe, in UpPTS send SRS and in second community Uplink data is sent in second subframe, in multiple symbols other than the last one symbol.

6. a kind of method for receiving the base station of detection reference signal SRS, this method comprises:

It is sent to terminal in two code elements in uplink pilot time slot UpPTS in first community by high-level signaling The information that upper configuration SRS is sent, first community operate in Time Division Duplex TDD mode；

It sends and the SRS sending overlap in the first subframe in first community and configures in uplink control information In the case where PUCCH format using shortening, connect in the second code element in first community in the first subframe, in UpPTS Receive SRS.

7. according to the method described in claim 6, further include:

In second community in the first subframe, uplink control information is received using the PUCCH format of shortening.

8. according to the method described in claim 6, further include:

It sends and the SRS sending overlap in the first subframe in first community and does not have in uplink control information In the case that configuration uses the PUCCH format shortened, uplink control information is received in the first subframe in second community.

9. according to the method described in claim 8, further include:

Uplink in second community sends the feelings with the SRS sending overlap in the second subframe in first community Under condition, in the second code element in first community in the second subframe, in UpPTS receive SRS and in second community Uplink data is received in second subframe, in multiple symbols other than the last one symbol.

10. a kind of for sending the terminal of detection reference signal SRS, which includes:

Transceiver is configured to send and receive signal；And

Controller couples with transceiver, and is configured for controlling, with

It is received in uplink pilot time slot UpPTS for being configured in two code elements in first community by high-level signaling The information that SRS is sent, first community operate in Time Division Duplex TDD mode,

Identify uplink control information in second community send whether with the institute in the first subframe in first community It states SRS sending overlap and whether configures using the physical uplink control channel PUCCH format shortened, second community exists It is operated in fdd mode, and

11. terminal according to claim 10, wherein the controller is also configured to

12. terminal according to claim 10, wherein the controller is also configured to

13. terminal according to claim 10, wherein the controller is also configured to

14. terminal according to claim 10, wherein the controller is also configured to

15. a kind of for receiving the base station of detection reference signal SRS, which includes:

Transceiver is configured to send and receive signal；And

Controller couples with transceiver, and is configured for controlling, with

It is sent in uplink pilot time slot UpPTS for being configured in two code elements in first community by high-level signaling The information that SRS is sent, first community operate in Time Division Duplex TDD mode,

16. base station according to claim 16, wherein the controller is also configured to

17. base station according to claim 16, wherein the controller is also configured to

18. base station according to claim 16, wherein the controller is also configured to